CN113196992A - Greenhouse skeleton structure imitating gorgon fruit leaf vein dome - Google Patents

Greenhouse skeleton structure imitating gorgon fruit leaf vein dome Download PDF

Info

Publication number
CN113196992A
CN113196992A CN202110564202.9A CN202110564202A CN113196992A CN 113196992 A CN113196992 A CN 113196992A CN 202110564202 A CN202110564202 A CN 202110564202A CN 113196992 A CN113196992 A CN 113196992A
Authority
CN
China
Prior art keywords
greenhouse
skeleton structure
dome
layer
load
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202110564202.9A
Other languages
Chinese (zh)
Inventor
关姝杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenyang University
Original Assignee
Shenyang University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenyang University filed Critical Shenyang University
Priority to CN202110564202.9A priority Critical patent/CN113196992A/en
Publication of CN113196992A publication Critical patent/CN113196992A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/14—Greenhouses
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25—Greenhouse technology, e.g. cooling systems therefor

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Greenhouses (AREA)

Abstract

本发明应用于温室骨架结构设计领域，具体的说是一种仿芡实叶脉穹顶温室骨架结构。包括圈梁、中间立柱、主梁、温室门、天窗，所述圈梁是将圆均分20等份，在每个等份及圆的四个象限点均匀设置立柱，圈梁上方设置主梁，所述主梁共四层，由竖直方向1/4圆弧四等分获得，整体结构为三角形和四边形桁架单元，圈梁上部第四层正视方向在两根竖直主梁之间设有温室门，第一层主梁设有四个可开合的天窗，本发明通过借鉴芡实叶脉脉络结构，提供一种高强度、强光照、省材料、便于机械化操作的穹顶温室骨架结构，分析证明，芡实叶脉的分叉结构及分叉角度不仅可以转移集中应力的作用，提高整体结构强度，而且在保证温室足够强度的前提下，可节省材料。

Figure 202110564202

The invention is applied to the field of greenhouse skeleton structure design, in particular to a greenhouse skeleton structure imitating the leaf veins of Gorgon. Including the ring beam, the middle column, the main beam, the greenhouse door, the skylight, the ring beam is divided into 20 equal parts of the circle, and the columns are evenly arranged in each equal part and the four quadrant points of the circle, and the main beam is set above the ring beam , the main beam has a total of four layers, which are obtained by dividing the vertical direction 1/4 circular arc into four equal parts. The overall structure is a triangular and quadrilateral truss unit. There is a greenhouse door, and the main beam on the first floor is provided with four openable skylights. The present invention provides a high-strength, strong light, material-saving, and easy-to-mechanized dome greenhouse skeleton structure by learning from the vein structure of Gorgon japonica. It is proved that the bifurcation structure and bifurcation angle of the veins of Gorgon can not only transfer the effect of concentrated stress and improve the overall structural strength, but also save materials on the premise of ensuring sufficient strength of the greenhouse.

Figure 202110564202

Description

Greenhouse skeleton structure imitating gorgon fruit leaf vein dome
Technical Field
The invention is applied to the field of greenhouse skeleton structure design, and particularly relates to a gordon euryale leaf vein dome-imitating greenhouse skeleton structure.
Background
The steel bar structure does not have circular greenhouse of post arch, and daylighting performance is good, and the mechanized operation of being convenient for can reach the framework effect that space utilization maximize and surface area minimize, is the best mode of ecological agriculture three-dimensional farming, because the reduction of stand, the bearing capacity of greenhouse then is the first consideration of designing circular greenhouse.
At present, the main structure of the existing dome greenhouse is similar to a bird nest structure, and a main beam of the existing dome greenhouse is composed of regular triangle, regular hexagon or quadrilateral truss units. The bird's nest structure greenhouse with the main beams of regular triangles and regular hexagon truss units has higher strength, but the number of the cross beams is large, the illumination is influenced, the economical efficiency is poor, and the truss supporting structure is arranged below the internal vertical main beams of the greenhouse with the main beams of the quadrilateral truss unit structure, so that the enough strength is ensured, and the consumption of manpower and materials is increased. On the premise of ensuring the sufficient intensity and illumination of the greenhouse, time saving, labor saving and economy are important considerations, so that the method has important significance for the optimal design of the main beam structure of the dome greenhouse.
Disclosure of Invention
The invention aims to solve the technical problems of poor illumination and economy of the existing dome greenhouse and provides a gordon euryale leaf vein dome-imitated greenhouse framework structure.
In order to solve the technical problems, the invention is realized by adopting the following technical scheme:
a gorgon fruit leaf vein dome-imitating greenhouse skeleton structure comprises ring beams, middle upright columns, main beams, greenhouse doors and skylights, wherein the ring beams are obtained by equally dividing a circle with the radius of 6000 mm into 20 equal parts, the upright columns are uniformly arranged at each equal part and four quadrant points of the circle, the main beams are arranged above the ring beams and are divided into four layers in four equal parts in the vertical direction 1/4, the whole structure is a triangular truss unit and a quadrangular truss unit, the first layer of the main beams is obtained by equally dividing auxiliary circles into 8 equal parts, intersection points are connected with the tops of the middle upright columns to form a triangular unit, the second layer of the main beams is obtained by radially extending the main beams of the first layer to the auxiliary circles of the second layer in 45 degrees, the intersection points are sequentially connected around the circumference to form alternate forms of the triangular unit and the quadrangular unit, and the third layer of the main beams radially extend the main beams to the auxiliary circles of the third layer in 45 degrees in four directions of southwest, northwest, northeast and southeast, the intersection points are obtained and connected, the fourth layer of the main beams are connected with the ring beam through the stand column, a greenhouse door is arranged between the two vertical main beams in the front view direction of the fourth layer of the upper portion of the ring beam, and the first layer of the main beams are provided with four skylight openings capable of being opened and closed.
Compared with the prior art, the invention has the beneficial effects that:
(1) the span of the greenhouse skeleton structure imitating the gordon euryale leaf vein dome is 12 m, and under the same span, the mechanized operation capability is improved, and a reliable facility environment is provided for three-dimensional farming agriculture;
(2) the first layer of the main beam is provided with four skylights which can be freely ventilated by matching with the ventilation opening at the lower side, thereby achieving the effect of energy saving and enabling the up-and-down convection ventilation of hot air to exert the best efficiency;
(3) the invention provides a dome greenhouse skeleton structure which has high strength, strong illumination, material saving and convenient mechanical operation by referring to the vein structure of the gorgon fruit veins, and analysis proves that the bifurcation structure and the bifurcation angle of the gorgon fruit veins not only can transfer the action of concentrated stress and improve the strength of the whole structure, but also can save materials on the premise of ensuring the sufficient strength of the greenhouse.
Drawings
The invention is further described with reference to the accompanying drawings in which:
FIG. 1 is a front view of an imitation gorgon euryale leaf vein dome greenhouse architecture;
FIG. 2 is a top view of an imitation gorgon fruit vein dome greenhouse framework;
FIG. 3 is a parameter diagram of an imitation gorgon euryale leaf vein dome greenhouse architecture;
FIG. 4 is a parameter diagram of an imitation gorgon fruit vein dome greenhouse girder;
reference numerals: 1. ring beam, 2, middle column, 3, main beam, 4, greenhouse door, 5, skylight.
Detailed Description
The invention is described in detail below with reference to the attached drawing figures:
as shown in the figure, the gordon euryale leaf vein dome imitating greenhouse skeleton structure comprises a ring beam 1, a middle upright post 2, a main beam 3, a greenhouse door 4 and a skylight 5, wherein the ring beam 1 is formed by equally dividing a circle with the radius of 6000 mm into 20 equal parts, the upright posts are uniformly arranged at four quadrant points of each equal part and circle, the main beam 3 is arranged above the ring beam 1, the main beam 3 has four layers totally and is obtained by performing 1/4 arc quartering in the vertical direction, the whole structure is a triangular truss unit and a quadrilateral truss unit, the auxiliary circle is equally divided into 8 equal parts on the first layer of the main beam 3, the intersection point is connected with the top of the middle upright post 2 to form a triangular unit, the first layer of the main beam 3 radially extends to the auxiliary circle of the second layer at an angle of 45 degrees to obtain intersection points which are sequentially connected around the circumference to form a triangular unit and quadrilateral unit alternate form, and the third layer of the main beam 3 is arranged in the southwest, northwest and northwest, Northeast, four directions in the southeast are 45 radial extensions to the supplementary circle of third layer with second floor girder 3, it links to each other to obtain the nodical, 3 third layer southward crossbeams of girder are by the vertical downward acquisition in 3 second floors of girder, in order to connect the greenhouse door 4 on 3 fourth floors of girder, 3 third floors of girder east, west, three direction crossbeam one end in north and southwest, northwest, northeast, four direction crossbeams in southeast link to each other, the other end is with the vertical symmetrical structure that is with it of 3 second floor crossbeams of girder, 3 fourth floors of girder pass through the stand with gird 1 and link to each other, 1 upper portion fourth floor orthographic view direction of gird is equipped with greenhouse door 4 between two vertical girders, 3 first floors of girder are equipped with four skylight 5 that can open and shut.
Due to regional differences and actual objective requirements, different greenhouse purposes in each region have different requirements on the size of a greenhouse framework, and in addition, different covering material choices are also different according to different greenhouse purposes in different regions. By using the framework method, the greenhouse framework with the same size and the same bearing capacity can be ensured to have more saved materials and stronger illumination.

Claims (3)

1.一种仿芡实叶脉穹顶温室骨架结构，其特征在于：具体包括以下步骤：1. an imitation Gorgon leaf vein dome greenhouse skeleton structure is characterized in that: specifically comprise the following steps: S1、仿叶脉脉络分布穹顶温室骨架结构的建模：采用逆向工程技术提取叶脉典型支撑结构，基于结构仿生方法，利用AutoCAD软件建立穹顶温室骨架结构的三维模型，包括圈梁、中间立柱、主梁、温室门和天窗，穹顶温室骨架结构为半球形，由三角形和四边形单元组合而成，网壳单元由上至下采用逐层分级形式，第一层主梁由辅助圆均分8等份所得；S1. Modeling of the skeleton structure of the dome greenhouse imitating the distribution of the veins and veins: using reverse engineering technology to extract the typical support structure of the leaf veins, based on the structural bionic method, and using AutoCAD software to build the 3D model of the skeleton structure of the dome greenhouse, including the ring beam, the middle column and the main beam , greenhouse doors and skylights, the skeleton structure of the dome greenhouse is hemispherical, composed of triangular and quadrangular units, the reticulated shell unit adopts a layer-by-layer grading form from top to bottom, and the main beam of the first layer is divided into 8 equal parts by the auxiliary circle. ; S2、荷载组合分析：查找相应的规范和标准，综合考虑企业、地理环境等对穹顶温室骨架结构的设计要求，荷载组合采用恒载+风载，恒载+雪载的组合形式，各荷载的取值方法为：恒载按第1-4层最大多边形单元自重与其覆盖材料的重量之和，作用方向为水平投影方向，风载的计算公式为Wk＝W0(μzμs-K0)，雪载的计算公式为Sk＝S0μrCeIeCtg；S2. Load combination analysis: find the corresponding codes and standards, and comprehensively consider the design requirements of the enterprise and geographical environment for the skeleton structure of the dome greenhouse. The load combination adopts the combination of dead load + wind load, dead load + snow load. The value method is as follows: the dead load is the sum of the self-weight of the largest polygonal element on the 1st-4th layer and the weight of the covering material, the action direction is the horizontal projection direction, and the calculation formula of the wind load is W k = W 0 (μ z μ s -K 0 ), the calculation formula of snow load is Sk = S 0 μ r C e I e C tg ; S3、穹顶温室骨架结构力学分析：对三角形单元的穹顶温室骨架结构进行强度、刚度和稳定性校验，强度考虑内轴力和弯矩作用，校验公式为
Figure FDA0003079918510000011
刚度用最大挠度来衡量，即受弯主梁的最大挠度，稳定性采用平面外稳定校验方法，校验公式为
Figure FDA0003079918510000012
S3. Mechanical analysis of the skeleton structure of the dome greenhouse: The strength, stiffness and stability of the skeleton structure of the dome greenhouse with triangular elements are checked. The strength considers the effect of internal axial force and bending moment. The check formula is:
Figure FDA0003079918510000011
The stiffness is measured by the maximum deflection, that is, the maximum deflection of the flexed main beam. The stability adopts the out-of-plane stability verification method. The verification formula is:
Figure FDA0003079918510000012
 2.根据权力要求1所述的一种仿芡实叶脉穹顶温室骨架结构，其特征在于：所述步骤S1采用逆向工程软件Geomagic studio对提取的脉络三维模型进行修复还原，且步骤S1中穹顶温室骨架结构底层半径和高度为6米，由上层至下层采用2x指数形式逐层分级，共4级，每级分支角度为45°。2. a kind of imitation Gorgon leaf vein dome greenhouse skeleton structure according to claim 1, is characterized in that: described step S1 adopts reverse engineering software Geomagic studio to repair and restore the extracted vein three-dimensional model, and in step S1, dome greenhouse skeleton The radius and height of the bottom layer of the structure are 6 meters. From the upper layer to the lower layer, it is graded layer by layer in the form of 2 x index, with a total of 4 levels, and the branch angle of each level is 45°. 3.根据权力要求1所述的一种仿芡实叶脉穹顶温室骨架结构，其特征在于：所述步骤S3恒载按穹顶温室骨架结构第1-4层最长梁水平投影重量之和取值。3. A kind of imitation Gorgon leaf vein dome greenhouse skeleton structure according to claim 1, it is characterized in that: described step S3 constant load is valued according to the sum of the horizontal projection weights of the longest beams on the 1st-4th layers of the dome greenhouse skeleton structure.
CN202110564202.9A 2021-05-24 2021-05-24 Greenhouse skeleton structure imitating gorgon fruit leaf vein dome Withdrawn CN113196992A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110564202.9A CN113196992A (en) 2021-05-24 2021-05-24 Greenhouse skeleton structure imitating gorgon fruit leaf vein dome

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110564202.9A CN113196992A (en) 2021-05-24 2021-05-24 Greenhouse skeleton structure imitating gorgon fruit leaf vein dome

Publications (1)

Publication Number Publication Date
CN113196992A true CN113196992A (en) 2021-08-03

Family

ID=77022931

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110564202.9A Withdrawn CN113196992A (en) 2021-05-24 2021-05-24 Greenhouse skeleton structure imitating gorgon fruit leaf vein dome

Country Status (1)

Country Link
CN (1) CN113196992A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202787496U (en) * 2012-08-21 2013-03-13 河南科技大学 Mussel-like low greenhouse framework structure
CN205623511U (en) * 2016-05-11 2016-10-12 张雪君 Multifunctional plant planter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202787496U (en) * 2012-08-21 2013-03-13 河南科技大学 Mussel-like low greenhouse framework structure
CN205623511U (en) * 2016-05-11 2016-10-12 张雪君 Multifunctional plant planter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
关姝杰: "基于芡实叶脉脉络的穹顶温室结构仿生研究", 《中国博士学位论文全文数据库农业科技辑》 *

Similar Documents

Publication Publication Date Title
Chilton et al. Timber gridshells: architecture, structure and craft
Lienhard Bending-active structures: form-finding strategies using elastic deformation in static and kinetic systems and the structural potentials therein
Lienhard et al. Bending-active structures
CN104975670B (en) A kind of not contour elliptic plane combined type cable dome structure in border
CN109113181A (en) It is a kind of to step up the rectangular inner ring shape of a saddle bilayer cable-strut tensile structure of layer connection greatly
Xia et al. Sustainable development strategy of rural built-up landscapes in Northeast China based on ANP approach
Silver et al. Structural engineering for architects: a handbook
US3330201A (en) Continuous space frame dome
CN216552415U (en) Large-span building structure of cable-strut system
CN113196992A (en) Greenhouse skeleton structure imitating gorgon fruit leaf vein dome
Krishnan Prestressed cable domes: Structural behavior and design
CN111877559A (en) Steel-wood mixed cross string arch shell structure
CN106088440A (en) Traffic circle self-balanced cabled truss structure
CN209494043U (en) A Single-Layer Cross Cable Support Structure Without Inner Ring
Xu et al. Structural design of irregular curved lattice shells in China
Yacubov Nature Does it Better: Biomimicry in Structural and Architectural Design
Yao et al. Construction Method and Process Optimization of Prestress Reverse Tensioning for Large‐Span Bidirectional Suspension Steel Roof Structures
Knebel et al. The structural making of the Eden Domes
CN116446531B (en) A double-skin lightweight roof structure system with complementary mechanical performance advantages
Phocas et al. Integrated interdisciplinary design: the environment as part of architectural education
Berger Structural form in architecture
Taghizadeh et al. Super-tall buildings forms based on structural concepts and energy conservation principles
Cassinello et al. The pursuit for new structural forms: Eduardo Torroja and Frei Otto
CN222435652U (en) Opposite-pulling asymmetric double-arch large-span stadium roof structure
MÖller et al. Multihalle Mannheim-maintenance ideas between creativity and extermination

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication

Application publication date: 20210803

WW01 Invention patent application withdrawn after publication